Hi Noah,
I tried playing back using the ESATA external drive, and I'm still having the same problem. The scene is of a school bus, rather close up, moving from one side of the screen to the other. If you care to take a look, the video's playing on our website at
http://www.scholastic.com/administrator. It's one of the early scenes in the video within the first minute.
Interestingly, I had a videographer shoot a similar scene of other school busses. He shot on SD, not sure what the camera was, but it was a pro SD model of some sort. I believe their both 30p. His footage of the schoolbus moving through the frame is smooth--no stuttering.
What do you think? If you had a chance to look at the link/footage I sent, do you think it's just a matter of being too close to a large moving object, thereby giving the effect of panning too quickly? And if that's the case, why would an SD camera (inferior in quality to the HMC150 I assume) not have that problem?
Thanks again for your time
Dan S.